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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Move to Linux's cpumask_t and 'hotplug' multi-processor booting
ChangeSet 1.1548, 2005/05/25 11:36:59+01:00, kaf24@xxxxxxxxxxxxxxxxxxxx
Move to Linux's cpumask_t and 'hotplug' multi-processor booting
interfaces. This also brings apic.c and various other files closer to
their Linux 2.6 equivalents. Simplified the scheduler interfaces a
little (particularly per-cpu and idle-domain initialisation).
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
arch/ia64/domain.c | 1
arch/ia64/xensetup.c | 3
arch/x86/acpi/boot.c | 1
arch/x86/apic.c | 108 +-
arch/x86/cdb.c | 2
arch/x86/dom0_ops.c | 4
arch/x86/domain.c | 27
arch/x86/domain_build.c | 2
arch/x86/io_apic.c | 2
arch/x86/irq.c | 5
arch/x86/microcode.c | 1
arch/x86/mtrr/main.c | 2
arch/x86/nmi.c | 16
arch/x86/setup.c | 75 -
arch/x86/shadow.c | 2
arch/x86/smp.c | 9
arch/x86/smpboot.c | 1755 +++++++++++++++++++---------------
arch/x86/time.c | 3
arch/x86/traps.c | 1
arch/x86/vmx.c | 16
common/ac_timer.c | 6
common/dom0_ops.c | 9
common/domain.c | 7
common/page_alloc.c | 6
common/perfc.c | 13
common/sched_bvt.c | 59 -
common/sched_sedf.c | 2207 +++++++++++++++++++++-----------------------
common/schedule.c | 152 ---
common/trace.c | 4
include/asm-x86/asm_defns.h | 2
include/asm-x86/bitops.h | 148 +-
include/asm-x86/div64.h | 39
include/asm-x86/flushtlb.h | 2
include/asm-x86/irq.h | 33
include/asm-x86/processor.h | 1
include/xen/bitmap.h | 1
include/xen/cpumask.h | 381 +++++++
include/xen/kernel.h | 24
include/xen/sched-if.h | 8
include/xen/sched.h | 4
include/xen/smp.h | 34
41 files changed, 2841 insertions(+), 2334 deletions(-)
diff -Nru a/xen/arch/ia64/domain.c b/xen/arch/ia64/domain.c
--- a/xen/arch/ia64/domain.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/ia64/domain.c 2005-05-25 07:02:24 -04:00
@@ -124,7 +124,6 @@
{
/* Just some sanity to ensure that the scheduler is set up okay. */
ASSERT(current->domain == IDLE_DOMAIN_ID);
- domain_unpause_by_systemcontroller(current->domain);
raise_softirq(SCHEDULE_SOFTIRQ);
do_softirq();
diff -Nru a/xen/arch/ia64/xensetup.c b/xen/arch/ia64/xensetup.c
--- a/xen/arch/ia64/xensetup.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/ia64/xensetup.c 2005-05-25 07:02:24 -04:00
@@ -249,13 +249,11 @@
/* Create initial domain 0. */
printk("About to call do_createdomain()\n");
dom0 = do_createdomain(0, 0);
-printk("About to call init_idle_task()\n");
init_task.domain = &idle0_domain;
init_task.processor = 0;
// init_task.mm = &init_mm;
init_task.domain->arch.mm = &init_mm;
// init_task.thread = INIT_THREAD;
- init_idle_task();
//arch_do_createdomain(current);
#ifdef CLONE_DOMAIN0
{
@@ -314,7 +312,6 @@
console_endboot(cmdline && strstr(cmdline, "tty0"));
#endif
- domain_unpause_by_systemcontroller(current->domain);
#ifdef CLONE_DOMAIN0
{
int i;
diff -Nru a/xen/arch/x86/acpi/boot.c b/xen/arch/x86/acpi/boot.c
--- a/xen/arch/x86/acpi/boot.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/x86/acpi/boot.c 2005-05-25 07:02:24 -04:00
@@ -34,7 +34,6 @@
#include <asm/io_apic.h>
#include <asm/apic.h>
#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/mpspec.h>
#include <mach_apic.h>
#include <mach_mpparse.h>
diff -Nru a/xen/arch/x86/apic.c b/xen/arch/x86/apic.c
--- a/xen/arch/x86/apic.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/x86/apic.c 2005-05-25 07:02:25 -04:00
@@ -663,7 +663,7 @@
#define APIC_DIVISOR 1
-static void __setup_APIC_LVTT(unsigned int clocks)
+void __setup_APIC_LVTT(unsigned int clocks)
{
unsigned int lvtt_value, tmp_value, ver;
@@ -680,30 +680,33 @@
apic_write_around(APIC_TMICT, clocks/APIC_DIVISOR);
}
-/*
- * this is done for every CPU from setup_APIC_clocks() below.
- * We setup each local APIC with a zero timeout value for now.
- * Unlike Linux, we don't have to wait for slices etc.
- */
-void setup_APIC_timer(void * data)
+static void __init setup_APIC_timer(unsigned int clocks)
{
unsigned long flags;
- __save_flags(flags);
- __sti();
- __setup_APIC_LVTT(0);
- __restore_flags(flags);
+
+ local_irq_save(flags);
+
+ /*
+ * Wait for IRQ0's slice:
+ */
+ wait_timer_tick();
+
+ __setup_APIC_LVTT(clocks);
+
+ local_irq_restore(flags);
}
/*
- * In this function we calibrate APIC bus clocks to the external timer.
- *
- * As a result we have the Bus Speed and CPU speed in Hz.
- *
- * We want to do the calibration only once (for CPU0). CPUs connected by the
- * same APIC bus have the very same bus frequency.
+ * In this function we calibrate APIC bus clocks to the external
+ * timer. Unfortunately we cannot use jiffies and the timer irq
+ * to calibrate, since some later bootup code depends on getting
+ * the first irq? Ugh.
*
- * This bit is a bit shoddy since we use the very same periodic timer interrupt
- * we try to eliminate to calibrate the APIC.
+ * We want to do the calibration only once since we
+ * want to have local timer irqs syncron. CPUs connected
+ * by the same APIC bus have the very same bus frequency.
+ * And we want to have irqs off anyways, no accidental
+ * APIC irq that way.
*/
int __init calibrate_APIC_clock(void)
@@ -780,21 +783,48 @@
return result;
}
-/*
- * initialise the APIC timers for all CPUs
- * we start with the first and find out processor frequency and bus speed
- */
-void __init setup_APIC_clocks (void)
+
+static unsigned int calibration_result;
+
+void __init setup_boot_APIC_clock(void)
{
+ apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n");
using_apic_timer = 1;
- __cli();
- /* calibrate CPU0 for CPU speed and BUS speed */
- bus_freq = calibrate_APIC_clock();
- /* Now set up the timer for real. */
- setup_APIC_timer((void *)bus_freq);
- __sti();
- /* and update all other cpus */
- smp_call_function(setup_APIC_timer, (void *)bus_freq, 1, 1);
+
+ local_irq_disable();
+
+ calibration_result = calibrate_APIC_clock();
+ /*
+ * Now set up the timer for real.
+ */
+ setup_APIC_timer(calibration_result);
+
+ local_irq_enable();
+}
+
+void __init setup_secondary_APIC_clock(void)
+{
+ setup_APIC_timer(calibration_result);
+}
+
+void __init disable_APIC_timer(void)
+{
+ if (using_apic_timer) {
+ unsigned long v;
+
+ v = apic_read(APIC_LVTT);
+ apic_write_around(APIC_LVTT, v | APIC_LVT_MASKED);
+ }
+}
+
+void enable_APIC_timer(void)
+{
+ if (using_apic_timer) {
+ unsigned long v;
+
+ v = apic_read(APIC_LVTT);
+ apic_write_around(APIC_LVTT, v & ~APIC_LVT_MASKED);
+ }
}
#undef APIC_DIVISOR
@@ -885,7 +915,7 @@
ack_APIC_irq();
/* see sw-dev-man vol 3, chapter 7.4.13.5 */
- printk("spurious APIC interrupt on CPU#%d, should never happen.\n",
+ printk(KERN_INFO "spurious APIC interrupt on CPU#%d, should never
happen.\n",
smp_processor_id());
}
@@ -914,8 +944,8 @@
6: Received illegal vector
7: Illegal register address
*/
- printk("APIC error on CPU%d: %02lx(%02lx)\n",
- smp_processor_id(), v, v1);
+ printk (KERN_DEBUG "APIC error on CPU%d: %02lx(%02lx)\n",
+ smp_processor_id(), v , v1);
}
/*
@@ -940,20 +970,18 @@
connect_bsp_APIC();
-#ifdef CONFIG_SMP
- cpu_online_map = 1;
-#endif
phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid);
- apic_write_around(APIC_ID, boot_cpu_physical_apicid);
setup_local_APIC();
+ if (nmi_watchdog == NMI_LOCAL_APIC)
+ check_nmi_watchdog();
#ifdef CONFIG_X86_IO_APIC
if (smp_found_config)
if (!skip_ioapic_setup && nr_ioapics)
setup_IO_APIC();
#endif
- setup_APIC_clocks();
+ setup_boot_APIC_clock();
return 0;
}
diff -Nru a/xen/arch/x86/cdb.c b/xen/arch/x86/cdb.c
--- a/xen/arch/x86/cdb.c 2005-05-25 07:02:23 -04:00
+++ b/xen/arch/x86/cdb.c 2005-05-25 07:02:24 -04:00
@@ -9,7 +9,7 @@
#include <xen/lib.h>
#include <asm/uaccess.h>
#include <xen/serial.h>
-#include <asm/irq.h>
+#include <xen/irq.h>
#include <xen/spinlock.h>
#include <asm/debugger.h>
#include <xen/init.h>
diff -Nru a/xen/arch/x86/dom0_ops.c b/xen/arch/x86/dom0_ops.c
--- a/xen/arch/x86/dom0_ops.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/x86/dom0_ops.c 2005-05-25 07:02:24 -04:00
@@ -176,8 +176,8 @@
{
dom0_physinfo_t *pi = &op->u.physinfo;
- pi->ht_per_core = opt_noht ? 1 : ht_per_core;
- pi->cores = smp_num_cpus / pi->ht_per_core;
+ pi->ht_per_core = ht_per_core;
+ pi->cores = num_online_cpus() / ht_per_core;
pi->total_pages = max_page;
pi->free_pages = avail_domheap_pages();
pi->cpu_khz = cpu_khz;
diff -Nru a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
--- a/xen/arch/x86/domain.c 2005-05-25 07:02:24 -04:00
+++ b/xen/arch/x86/domain.c 2005-05-25 07:02:24 -04:00
@@ -73,44 +73,31 @@
void idle_loop(void)
{
int cpu = smp_processor_id();
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